Table 1.
Ecotype | Early1 | Late1 | t Statistic | P value | df | Interpretation |
---|---|---|---|---|---|---|
S | 0.75 | 1.65 | −5.437 | 0.006 | 4 | A benefit evolves for growth in mixture. |
R | 0.03 | 0.13 | −3.555 | 0.024 | 4 | Performs better alone, but growth in mixture improves. |
W | 0.02 | 0.04 | −2.288 | 0.084 | 4 | Performs better alone. Growth does not improve in mixture. |
Pairwise differences between phenotypically similar ecotypes from Early and Late populations were determined by Tukey's HSD post hoc tests (P < 0.05, n = 5) after one-way ANOVA using log10 transformed data.
Ratio, CFU/mL in mixed culture: CFU/mL in solitary culture.